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Intro to Parasitology, Parasitism, Sub-Clinical Disease, Helmiths, Explain…
Intro to Parasitology
Parasitism
Causes
Death
Parasites don't want their host to die
can happen if load on animal is too much or parasite enters wrong host species
Clinical Disease
Illness
Sub-Clinical Disease
Most common
Less than optimum productivity
An organism that lives on/in a host organism
Macroparasite: Doesn't multiply in the host (like helminths)
Microparasites: Multiply inside the host (like protozoa)
Sub-Clinical Disease
Most Common
Failure of (production) animal to reach full genetic potential
Example: poor milk production, poor quality wool, poor weight gain
Helmiths
Cestodes (Tapeworms)
Morphology
Strobila (body) made up of proglottids (segments)
Hermaphrodites
Each proglottid has male/female sex organ
Like an egg pack
Eggs are immediately infective
Explain the concept of "parasitism" and associated terms provided in the glossary
Explain the concept of sub-clinical disease